baber/WOPTO huggingface dataset:
Patent CA-2249786-A1 (CA)
Title: Difluoro statone analogs
Inventor: VAN DORSSELAER VIVIANE
IPC: A61K31/535
Filed: 1994-06-07
Abstract: This invention relates to novel difluoro statone analogs of Formula 1, to the processes and intermediates useful for their preparation and to their use as anti-viral agents.
Patent CA-2252201-A1 (CA)
Inventor: IRELAND DONALD T
IPC: C22B9/10
Filed: 1998-10-29
Abstract: A salt flux composition comprising a standard purity salt and additives is used in the recycle of scrap aluminum to increase the recovery of aluminum. The additives include a carbon source, an alkaline agent and a fluoride source.
Patent CA-2253890-A1 (CA)
Inventor: KITOH KENSHIN
IPC: H01M10/42
Filed: 1998-11-10
Abstract: A lithium secondary battery is provided in which even if the depth of discharge becomes deep, lowering of an power is small, and charging and discharging characteristics are excellent, and which is suitably used particularly as a battery for driving a motor of an electric vehicle or the like. In the lithium secondary battery, an internal electrode body formed by winding a positive electrode and a negative electrode through a separator made of porous polymer is contained in a battery case, and an organic electrolyte is used. An power at a depth of discharge of 80% is not smaller than 60% of an power at a depth of discharge of 0%.
Patent CA-2263185-A1 (CA)
Title: Organometallic compounds
Inventor: WEISS THOMAS
IPC: C08F4/6592
Filed: 1999-03-01
Abstract: Organometallic compounds of transition metals containing optionally tetrahydro-genated 2-indenyl as a first ligand of the formula (see fig. I), wherein A represents the benzo system or the tetrahydrocyclohexyl system and the other symbols have the range of meanings given in the description, are prepared by reaction of (see fig. II), with Mg or Zn and with a dihalide Hal2-Y-Hal3 (III) to form the novel intermediates (see fig. III), further reaction with ZM2P (Va) or ZR9p (Vb) to form (see fig. IV) and further reaction with a transition metal compound of the formula M1X q (VIII).        Many compounds (I) are not C2-symmetrical.   The compounds (I) can be used as catalysts for the (co)polymerization of olefins, diolefins and/or cycloolefins.
Patent CA-2264191-A1 (CA)
Inventor: SHONE CLIFFORD CHARLES
IPC: A61P31/04
Filed: 1997-08-22
Abstract: A polypeptide has first and second domains which enable the polypeptide to be translocated into a target cell or which increase the solubility of the polypeptide, or both, and further enable the polypeptide to cleave one or more vesicle or plasma-membrane associated proteins essential to exocytosis. The polypeptide thus combines useful properties of a clostridial toxin, such as a botulinum or tetanus toxin, without the toxicity associated with the natural molecule. The polypeptide can also contain a third domain that targets it to a specific cell, rendering the polypeptide useful in inhibition of exocytosis in target cells. Fusion proteins comprising the polypeptide, nucleic acids encoding the polypeptide and methods of making the polypeptide are also provided. Controlled activation of the polypeptide is possible and the polypeptide can be incorporated into vaccines and toxin assays.
Patent CA-2266439-A1 (CA)
Title: Neutrokine .alpha.
Inventor: NI JIAN
IPC: C12N1/21
Filed: 1996-10-25
Abstract: The present invention relates to a novel Neutrokine .alpha. protein which is a member of the TNF protein family. In particular, isolated nucleic acid molecules are provided encoding the human Neutrokine .alpha. protein including soluble forms of the extracellular domain. Neutrokine .alpha. polypeptides are also provided as are vectors, host cells and recombinant methods for producing the same. The invention further relates to screening methods for identifying agonists and antagonists of Neutrokine .alpha. activity. Also provided are diagnostic methods for detecting immune system-related disorders and therapeutic methods for treating immune system-related disorders.
Patent CA-2267270-A1 (CA)
Inventor: LINDROTH LARS MAGNUS
IPC: G10L19/005
Filed: 1997-09-26
Abstract: The present invention relates to the technique of handover in mobile telephony. A new Transcoder and Rate Adaptation Unit (100, fig. 3) is introduced which provides two uplink (230, 250 respectively, fig. 3) and two downlink (240, 260 respectively, fig. 3) channels. The use of these two channels (230, 250 respectively, fig.3) on the uplink during handover provides for the use of distributed handover on the uplink. The result minimizes the audible interruption during handover by minimizing the loss of Traffic Channel frames to what is possible within the GSM standard. Additionally, interruption of the speech or background noise during these lost frames is masked by an error concealment algorithm, since the Transcoder and Rate Adaptation Unit (100, fig. 3) still has information from the Base Transceiver Station responsible for transmission before the handover.
Patent CA-2268519-A1 (CA)
Inventor: MILLER DAVID R
IPC: A61M1/36
Filed: 1997-10-22
Abstract: Access recirculation in a shunt is determined quantitatively by a method in which a standard solution, such as saline, is injected into a patient's (200) bloodstream upstream of the shunt. At a point in the access line, a photometric measurement is conducted of the change in hematocrit (delta H) with respect to time. Electronic circuitry (150) receives signals from the detector (100), compares the integrated area of delta H with respect to time of the standard solution initially flowing through the access of the recirculated solution, and provides display of recirculation (152).
Patent CA-2271561-A1 (CA)
Title: Adjustable window hinge
Inventor: CARRIER GERMAIN
IPC: E05D15/44
Filed: 1999-05-12
Abstract: There is provided an adjustable window hinge suitable for casement and awning windows, the window hinge having a longitudinally extending track securable to a window frame, a shoe slidable along the track, a sash arm having one end pivotably connected to the shoe and the other end connected to the window, a support frame having a first end pivotably connected to the sash arm and a second end pivotably connected to the track, the second end being pivotably connected to the track by a rack and pinion arrangement such that rotational movement of the pinion will result in a longitudinal displacement of the stud along the longitudinally extending track.
Patent CA-2271806-A1 (CA)
Inventor: MAOUJOUD MOHAMMED
IPC: B28D1/14
Filed: 1997-09-30
Abstract: An abrasive tool for cutting extremely abrasive-resistant materials includes a novel, abrasive segment with a generally crenelated, rectangular appearance. The segment has a single piece vein of a primary abrasive and first bond material extending completely along the length of the segment. Gaps between the vein and the faces opposite the vein coincident faces are occupied by a second bond material, and optionally, a secondary abrasive, thus forming multiple, separated abrasive regions. The segment can be adapted to conform to the curvature of diverse cutting edges, and thus can be used in rotary and reciprocating saw blades and core drilling bits. Primary abrasive and first bond material are compacted to shape a vein preform which is presintered in a vein mold to produce a green vein. The green vein is placed in a segment mold and then second bond material and optional secondary abrasive are deposited in cavities between the vein and segment faces to create separated abrasive regions. The segment is sintered.
Patent CA-2272399-A1 (CA)
Title: Regulateur de temperature pour dispositifs de maintien therapeutiques
Inventor: VRZALIK JOHN H
IPC: F28F3/14
Filed: 1997-11-24
Abstract: La présente invention concerne un appareil dont la température peut être régulée et qui est conçu pour un dispositif à plate-forme de maintien thérapeutique préétabli, ainsi qu'un dispositif de production d'un fluide thermique. Ledit appareil possède un premier côté (30) disposé par construction à proximité de la surface de la plate-forme de maintien orientée vers le patient, un second côté (31) disposé en position adjacente au patient et doté d'une première partie (33a) reliée hermétiquement à une première partie (33b) du premier côté (30), et d'une seconde partie (33d) située à distance d'une seconde partie (33c) du premier côté (30) de manière à former une poche (34) entre ces première et seconde parties. Ledit appareil comporte des organes faisant office de robinets (28, 29), fonctionnellement reliés à ladite poche et au dispositif producteur de fluide thermique de manière à permettre l'écoulement du fluide de l'un vers l'autre. L'invention se rapporte également à un procédé de fabrication de cet appareil.
Patent CA-2273264-A1 (CA)
Inventor: GEROW GERALD KEITH
IPC: C10N30/20
Filed: 1997-12-17
Abstract: The present invention is a non-emulsifying, chlorine-free metal working or cutting oil which exhibits the same or superior performance as heretofore exhibited by chlorine containing fluids. The metal working oil contains cosulfurized olefins, polysulfurized hydrocarbon, phosphate esters, animal triglycerides, high molecular weight polyolefins in a mineral oil basestock. The oil may also contain metal deactivators, antioxidants and preservatives such as BHT, and mixtures of the above.
Patent CA-2273568-A1 (CA)
Inventor: HEAD PHILIP
IPC: E21B33/14
Filed: 1999-05-31
Abstract: The invention relates to a method of installing a casing section in a well, by means of first and second connection means arranged on a tubular lowering means, the first connection means being connected at an upper end of the casing section and the second connection means being connected at a lower end of the casing section, the tubular lowering means extending through the casing section. First and second flow paths are provided to enable fluids from the well to pass through the inside of the casing, as the casing is lowered into the well. A hollow is provided through the second connection means connecting the inside of the tubular lowering means to the outside of the casing. A lockable non return valve is provided in the hollow which permits the well fluids to flow from inside the internal bore of the tubular lowering means to the well outside the section being installed, and also permitting fluids to flow from the well to the inside of the tubular lowering means and thus back to surface. When the casing to be fitted has been lowered to its installed position the lockable return valve is unlocked thus operating as a conventional non return valve and preventing the unwanted flow of fluids up the internal bore of the section being installed.
Patent CA-2275341-A1 (CA)
Inventor: THURIER YVAN
IPC: B23Q3/154
Filed: 1998-10-08
Abstract: The invention concerns a device for straining a part made of non-magnetic sheet (21) on a table (20), comprising permanent magnets (1, 2, 3, 4) evenly arranged under the table (20), with their polar surfaces perpendicular to the table plane and a magnetic circuit for each of the magnets including a yoke (27) in ferromagnetic material and ferromagnetic elements (12, 13, 14, 15, 16) closing the magnetic circuit, the magnets (1 to 4) rotating between two positions about an axis parallel to the polar surfaces of the magnets, inside a body whereof the top surface (20), perpendicular to said axes of rotation, forms the straining table. The yoke (27) comprises fixed and evenly arranged permanent magnets (33, 34) with parallel polar surfaces perpendicular to the table plane, said magnets facing each other with surfaces of same polarity; in a first position, the polar surfaces of the table magnets are mutually parallel, the magnets facing each other with surfaces of same polarity but of opposite polarity to that of the yoke corresponding magnets while in a second position, the magnets are facing each other with surfaces of same polarity and having the same polarity as the yoke corresponding magnet surfaces.
Patent CA-2277963-A1 (CA)
Inventor: GAY GEOFFREY NORMAN WALTER
IPC: G06F3/0488
Filed: 1998-01-27
Abstract: Means for inputting a hand generated character into a computer comprises means (10) for drawing a character, means for abstracting a sequence of signals as the character is drawn corresponding to components of the character to produce a code representative of that character and means (12) for recognising that code, whereby the character is inputted to the computer (14).
Patent CA-2278587-A1 (CA)
Title: Process for the preparation of a carboxylic anhydride
Inventor: OHNUMA YOSHINOBU
IPC: C07D307/89
Filed: 1998-01-29
Abstract: The present invention provides a colorless and transparent carboxylic anhydride with excellent stability in a liquid state at room temperature which is useful in uses such as a curing agent for epoxy resins, a liquid state encapsulant for semiconductors, and a liquid state encapsulant for light emission diodes. Said carboxylic anhydride which is a liquid at 20 ~C  containing a carboxylic anhydride not having carbon-carbon double bond such as 3-isobutyl-5,6-dimethylcyclohexane-1,2-dicarboxylic anhydride, 3-(.beta.-methylbutyl)-5-methylcyclohexane-1,2-dicarboxylic anhydride, and 4-isohexylcyclohexane-1,2-dicarboxylic anhydride is prepared by forming an acid anhydride compound having a cyclohexane ring by a Diels-Alder reaction of a diene-hydrocarbon or triene-hydrocarbon having a carbon number of 10 with maleic anhydride, followed by carrying out a stereo-isomerization in the presence of a catalyst, and further carrying out hydrogenation of said reaction product.
Patent CA-2282955-A1 (CA)
Inventor: HSU WEN-LIANG
IPC: C08L9/00
Filed: 1999-09-16
Abstract: It has been unexpectedly determined that isoprene-butadiene rubber having a high glass transition temperature within the range of about -40°C to about -25°C (high Tg IBR) can be loaded with silica as a filler and utilized in manufacturing tire treads that have outstanding performance characteristics.       For instance, such tire treads offer lower hysteresis at high temperatures (improved rolling resistance) and higher hysteresis at low temperatures (improved wet traction characteristics). By utilizing high Tg IBR in tire tread compounds, the maximum benefits of silica compounding can be realized without the need for solution or emulsion styrene-butadiene rubber (SBR) in the tread rubber formulations. The tire tread rubber formulations of this invention will normally contain about 20 phr (parts per 100 parts of rubber) to about 100 phr of the high Tg IBR. In other words, the tread rubber will normally contain at least 20 phr of the high Tg IBR and can contain up to 100 phr of the high Tg IBR. The tread compound will also contain 40 phr to 150 phr of a filler with the proviso that at least about 20 phr of silica is included in the filler. The tire tread compound will also contain a silica coupling agent. This invention more specifically discloses a tire tread rubber composition which is comprised of (1) at least about 20 phr of an isoprene-butadiene rubber having a glass transition temperature which is within the range of about -40°C to -25°C, (2) 40 phr to 150 phr of a filler, with the proviso that the filler contains at least about 20 phr of silica, and (3) a silica coupling agent.
Patent CA-2283968-A1 (CA)
Title: Device for driving a large dimension film, in particular advertising posters supported by an unwinding strip, screen and advertising vehicle comprising same
Inventor: NARQUIN JEAN-YVES
IPC: G09F11/29
Filed: 1998-03-06
Abstract: The invention concerns a device for driving a large dimension film, in particular advertising posters supported by an unwinding strip, between a drive roll (29) and a receiving roll (30), only one of the rolls is driven by an electric motor, the other being driven by coupling means including a flange connected to the motor roll, said flange driving the second roll via a spring.
Patent CA-2287317-A1 (CA)
Title: Tower
Inventor: EILERTSEN BJORN
IPC: E21B19/083
Filed: 1998-04-23
Abstract: A derrick, especially a drilling rig derrick, including a derrick structure and lifting tackle for a load, for example, a drill string, in the derrick structure. The lifting tackle includes guideways in parallel relation which each includes a vertical main guide rail (4, 7), a storage guide rail (5, 8) parallel thereto, and in a lower portion of the derrick a connecting guide portion (6, 9) between the two said rails, a rack (10, 11), slidably arranged in each guideway, which racks (10, 11) are divided into successive, preferably hingedly interconnected rack segments (12, 13) designed to bear against one another when the rack (10, 11) or when a part thereof is in the vertical main guide rail (4, 7), the main guide rail (4, 7) being designed for horizontal support of the rack segments (12, 13), a load-bearing yoke (22) supported on the racks (10, 11) in the respective vertical main guide rails (4, 7), and a driving gear (25) including a driving gearwheel (26, 27, 28) in driving engagement with the racks (12, 13) in the respective vertical guide rails (4, 7).
Patent CA-2288209-A1 (CA)
Inventor: BANDY-OPADHYAY PARAMITA T
IPC: A61K48/00
Filed: 1998-04-30
Abstract: The present invention concerns compositions and methods for the introduction of specific genetic changes in endogenous genes of the cells of an animal. The genetic changes are effected by oligonucleotides or oligonucleotide derivatives and analogs, which are generally less than about 100 nucleotides in length. The invention provides for macromolecular carriers, optionally incorporating ligands for clathrin coated pit receptors. In one embodiment the ligand is a lactose or galactose and the genetic changes are made in hepatocytes. By means of the invention up to 40 % of the copiies of a target gene have been changed in vitro. Repair of mutant genes having a Crigler-Najjar like phenotype and Hemophilia B phenotype were observed.
Patent CA-2290994-A1 (CA)
Title: A process for the epoxidation of alkenes
Inventor: NEUMANN RONNY
IPC: B01J31/28
Filed: 1998-05-27
Abstract: The invention provides a process for the catalytic epoxidation of alkene comprising contacting a transition metal substituted polyoxometalate and molecular oxygen with alkene.
Patent CA-2294713-A1 (CA)
Title: Hearing aid having input agc and output agc
Inventor: SALTYKOV OLEG
IPC: H03G7/08
Filed: 1998-06-05
Abstract: A hearing aid has input AGC and output AGC using only one attack/release circuit and only one variable gain amplifier. An input AGC signal and an output AGC signal are summed and the summed signal, processed through the attack/release circuit, is used to control the gain of the variable gain amplifier.
Patent CA-2296752-A1 (CA)
Title: Procede pour la stimulation des defenses naturelles des plantes
Inventor: CLOAREC BERNARD
IPC: A01N43/16
Filed: 1998-07-20
Abstract: Utilisation pour la potentialisation et la stimulation des défenses naturelles des plantes agronomiquement utiles, d'une composition phytosanitaire contenant un ou plusieurs oligo .beta. 1-3 glucanes composés de 3 à 250, de préférence de 3 à 50 et plus préférentiellement de 3 à 30 unités saccharidiques, les caractéristiques de concentration en oligo .beta. 1-3 glucanes et de mise en oeuvre de cette composition étant choisies de façon telle qu'elle apporte par hectare de culture une quantité  d'oligo .beta. 1-3 glucanes inférieure à celle qui induit directement les réactions de défense naturelle, cette quantité étant dans la pratique de 1 à 200 g, de préférence de 4 à 80 g par hectare dans le cas des céréales et notamment du blé.
Patent CA-2298344-A1 (CA)
Title: Integrated reconfigurable polarizer
Inventor: RAMANUJAM PARTHASARATHY
IPC: H01Q13/06
Filed: 2000-02-09
Abstract: A tunable polarizes having a 90 degree phase shift section and two adjustable, or rotatable, 45 degree phase shift sections. Each section is separated by spacer to maintain independence and avoid interaction. When the two 45 degree phase shift sections and are orthogonal to each other, the polarization detected is determined by the 90 degree phase shift section which provides compatibility with circularly polarized signal. When the two 45 degree phase shift sections and are aligned, the polarizes is in a linear polarization compatibility mode.
Patent CA-2298631-A1 (CA)
Title: Partially enhanced drill bit
Inventor: INGMARSSON KARL
IPC: E21B10/56
Filed: 1998-08-14
Abstract: A partially diamond-enhanced drill bit includes a bit body, at feats one annular row of non-diamond enhanced buttons mounted in the bit body, and at least one annular row of diamond-enhanced buttons mounted in the bit body radially outside of the non-enhanced buttons. A total wear volume of the non-enhanced buttons in at least one row thereof is greater than 75 percent of a total wear volume of an outermost annular row of enhanced buttons. A number of non-enhanced buttons in one of the rows thereof is at least equal to a number of enhanced buttons in the outermost annular row thereof. At least some of the non-enhanced buttons have a greater wear volume than any of the enhanced buttons. The radially outermost row of non-enhanced buttons is displaced axially forwardly with respect to an adjacent row of enhanced buttons.
Patent CA-2299672-A1 (CA)
Title: Frein electromagnetique
Inventor: RANCOURT YVON
IPC: F16D55/28
Filed: 2000-03-06
Abstract: Un frein à disque intégré dont la force motrice comprend un ensemble d'anneaux magnétiques incluant une armature mobile liée à une couronne de friction mobile. Cette armature ayant une forme annulaire est disposée sur le côté opposé à un stator annulaire de l'ensemble de l'anneau magnétique et des ponts de transfert liant l'armature à la couronne de friction.
Patent CA-2300464-A1 (CA)
Title: Method for treating headache
Inventor: LEON JUDITH M
IPC: A61K38/16
Filed: 1994-12-16
Abstract: The present invention provides a method for relieving pain, associated with muscle contractions, a composition and a method of treating conditions such as cholinergic controlled secretions including excessive sweating, lacrimation and mucus secretions and a method for treating smooth muscle disorders including, but not limited to, spasms in the sphincter of the cardiovascular arteriole, gastrointestinal system, urinary, gall bladder and rectum, which method comprises administering to the patient suffering from said disorder or condition a therapeutically effective amount of Botulinum toxin selected from a group consisting of Botulinum toxin types B, C, D, E, F and G.
Patent CA-2300550-A1 (CA)
Inventor: DALLAS TIM
IPC: E21B47/022
Filed: 2000-03-08
Abstract: A method of drilling under barriers (rivers, highways and the like) is set out. The horizontal drilling system mounts a guidance tool on the end of the drill string just behind the drill bit. The guidance tool includes a pair of right angle accelero meters and a 3-axis mounted gyro. The gyro furnishes data in a plane at right angles to the z-axis. This defines four data streams to the CPU enabling determination of drill bit location and pathway.
Patent CA-2302247-A1 (CA)
Inventor: SAKAI CHIHIRO
IPC: C03C3/087
Filed: 1999-07-06
Abstract: A raw material composition for a soda-lime glass which can effectively inhibit the formation of nickel sulfide (NiS) during melting of the material. A  foreign substance of nickel sulfide (NiS) which is present in a soda-lime glass is formed by the reaction, during vitrifying reaction at an elevated temperature, of Ni components contained in a metal particle containing nickel and in stainless steel used in a glass-melting furnace with sulfur (S) components contained in Na2 SO4 used as a material for glass. The inventive raw material composition for a soda-lime glass comprises a small amount of an additive comprising a metal oxide, a metal chloride, a metal sulfate or a metal nitrate. The composition can be used for reducing or completely vanishing the formation of NiS by the reaction of Ni and S during melting.